If Thaddeus owned a dog, would it be Thaddeus' dog or Thaddeus's dog? Question applies to all names ending with an "S". Always pondered and struggled with this. An end to this (somewhat) intellectual struggle would be appreciated. Thanks teacher! :D
Both are right. We prefer "Thaddeus's" (because it's consistent with all other singular nouns that end in -s). It's a style preference, not a grammar rule.
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